The protection of three - phase motors by TeSys H is ensured against potential faults
a) Thermal overload: the motor currents exceed the set value.
b) Phase unbalanced: the motor currents differ from each other by more than 33 %
c) Phase loss: power missing on one or several phases
d) Stall and jam: motor current exceeding 45 A for more that 2 s during starting or running phase - No motor is connected - Motor current is lower that the minimum
configurable current for more than 2 seconds, on at least two phases.
For all this detected situations, the TeSys H motor starter will switch off, activate its TRP/ERR LED and fault signaling contact.